Yes you're right. In the description of the 3D models now used by clonk was a picture of the skeleton of a wipf but there is no wipf in the game :(. I think too it would be better to have a wipf again.

The wipf 3D model exists.

I think I haven't rigged/animated it yet (or if I have, the animation was garbage and needed to be redone). It got put on ice until we are done the more important things, like completing the production lines and the graphics for the buildings. If someone wanted to script the wipf instead of teaching caveslugs to murder Clonks (~cough~) I would priortize finalizing the Wipf's graphics, though.

Edit: (Also, there was a discussion about animals a while back. These graphics would have to be remade/heavily-modified to fit the new design)